For steel components, a non-dimensional Presto Black finish is a perfect, low cost way to create good corrosion protection. This black oxide finish also enhances the sales appeal for your products. When properly sealed, Presto Black finish will resist rust, and is lab tested for up to 1,200 hours of humidity without chipping or peeling. Presto Black has a uniform 0.000030 inch (1 micron) thickness. The porous crystalline structure of the black finish makes an excellent absorbent base for a rust preventive top coat.
Check out all the Presto Black options for immersion production scale lines, brush-on liquid and gel formula. Scroll down to see options.
For production scale lines, mixed with water at 10% by volume.
For use with MKP Presto Black. Keeps Blackening bath in balance to produce high quality, clean Black finishes.
Instant acting Blackener/touch-up for tools/machine parts or decorative surfaces. Dark Black finish.
Unique Gel formula has a slower reaction than BST4 Liquid, giving the user an extra measure of control when dealing with large surfaces. Gray/Black finish.